document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=927497>Question 927497</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Use half-angle formulas to find the exact values.<BR>\n" );
document.write( "(a)    cos 112°30'\r<BR>\n" );
document.write( "\n" );
document.write( "&\r<BR>\n" );
document.write( "\n" );
document.write( "(c)    tan 5&#960;/12<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #563033 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=563033\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Use half-angle formulas to find the exact values.<BR>\n" );
document.write( "(a)cos 112°30'=cos112.5&#730;<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cos%28112.5%29=cos%28225%2F2%29%0D%0A=-sqrt%28%281%2Bcos%28225%29%29%2F2%29=-sqrt%281-sqrt%282%29%2F2%29%2F2=-sqrt%28%282-sqrt%282%29%29%2F4%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "..<BR>\n" );
document.write( "(c) tan 5&#960;/12<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=tan%285pi%2F12%29%0D%0A=tan%28%285pi%2F6%29%2F2%29%0D%0A=%28sin%285pi%2F6%29%29%2F%281%2Bcos%285pi%2F6%29%29=%281%2F2%29%2F%281-sqrt%283%29%2F2%29=1%2F%282-sqrt%283%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );